import java.util.Scanner;

public class 二维前缀和 {
    //https://www.nowcoder.com/practice/99eb8040d116414ea3296467ce81cbbc?tpId=230&tqId=38962&ru=/exam/oj
    //二维前缀和的模板提
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        int m = in.nextInt();
        int q = in.nextInt();
        long[][] arr = new long[n][m];
        for(int i = 0;i < n;i++){
            for(int j = 0;j < m;j++){
                arr[i][j] = in.nextInt();
            }
        }
        long[][] dp = new long[n + 1][m + 1];
        for(int i = 1;i <= n;i++){
            for(int j = 1;j <= m;j++){
                dp[i][j] = dp[i - 1][j] + dp[i][j - 1] - dp[i - 1][j - 1] + arr[i - 1][j - 1];
            }
        }
        while(q > 0){
            int x1 = in.nextInt();
            int y1 = in.nextInt();
            int x2 = in.nextInt();
            int y2 = in.nextInt();
            long sum = dp[x2][y2] - dp[x2][y1 - 1] - dp[x1 - 1][y2] + dp[x1 - 1][y1 - 1];
            System.out.println(sum);
            q--;
        }
    }
}
